Arey is designed for anyone beginning to notice greys or looking to protect pigment while improving overall hair and scalp health. The best results come early in the grey journey—typically under ~30% grey—where The System (our clinically proven daily duo of Not Today, Grey supplement and To The Root® serum) can help slow, reduce, and even repigment greys. If you’re further along (more than 30% grey or with white hairs), our products won’t re-darken white strands, but can still preserve remaining pigment and improve texture, smoothness, and strength. Every formula is clean, color-safe, science-backed, and dermatologist-tested. For personalized guidance, please reach out to hey@arey.com and ask for a personal consultation with our Trichologist (hair and scalp expert).

You should notice a healthier scalp within 1-2 months. Fuller, healthier hair appears in months 2-3, followed by less grey hair growth in months 3-4. Repigmentation of grey (not white) hair can become noticeable around 4-6 months of consistent use. Because hair grows about ½ an inch per month, it takes at least 2 months for results to be visible. Results vary, but science + consistency = change.

For best results, we recommend starting with our clinically-proven daily supplement + scalp serum: The System. The Shower Duo is a great, convenient option to preserve pigment and soften wiry grey and can be paired with Not Today, Grey to slow grey growth and help with repigmentation.

Arey is clinically proven to help preserve natural pigment and slow the growth of new greys—especially in the early stages——while improving scalp balance, fullness, strength, texture, and shine. With consistent daily use, results compound over time. Learn more on our Studies page.

Yes. Safety is a top priority in every formula we create. All Arey products—from our daily supplement, to our topical solutions—are developed with cosmetic chemist oversight, informed by clinical research, dermatologist tested and designed for long-term use.

• Formulation Standards: Our haircare products are free from sulfates, silicones, parabens, and phthalates. They’re color-safe, hypoallergenic, and tested to be gentle enough for daily use across all hair types.
• Scalp Serums + Treatments: Our topical formulas are powered by our patented Mela-9® Complex, antioxidants, and peptides at clinically effective levels. They’re oil-free, lightweight, and tested for scalp safety to avoid buildup or irritation.
• Supplement: Not Today, Grey—our daily supplement—is formulated with a proprietary blend of vitamins, minerals, antioxidants, and botanicals to support pigment preservation and production as well as overall hair health. Each ingredient has been carefully researched for efficacy and safety, and all are included well within tolerable limits for most adults. The formula is manufactured in facilities that follow strict FDA, cGMP (Good Manufacturing Practices), and NSF standards. 
• Comprehensive Approach: Because hair aging is influenced by many non-genetic factors (like oxidative stress, nutrition, and UV exposure), our system works inside and out. You can feel confident knowing our approach is holistic, clinically-backed, and designed to support pigment, growth, and overall hair health.

If you have specific medical conditions, are pregnant or nursing, or are taking prescription medications, we recommend reviewing our ingredients with your healthcare provider before starting a new regimen as they know your body best.

Yes—and we recommend it! All Arey products are color-safe for dyed and highlighted hair, and can actually help counteract some of the damage caused by coloring. Our clinically-backed ingredients work across all hair types to strengthen, hydrate, and improve texture—leaving hair fuller, softer, shinier, and healthier over time.

If you’re covering greys and have less than ~30% grey, The System can slow new greys and even help repigment grey strands. The Shower Duo helps preserve the pigment you still have while keeping hair smooth and strong. For post-dye scalp irritation, we also recommend Calm It Down® for instant relief from redness and irritation.

Arey works best to slow grey growth in the earlier stages of greying, less than ~30% grey. If you have >30% grey and white hair, you’re less likely to see repigmentation. That said, our formulas can still make a meaningful difference by improving texture, smoothness, strength, and elasticity.

Here’s the key distinction: grey hair is in the process of losing pigment, which means it can still be preserved—or even repigmented—if melanin remains in the hair bulb. White hair has fully lost pigment, so while we can’t reverse it, we can support the overall health and look of your hair.

To learn more about how this works, visit our How It Works page.

Yes—Not Today, Grey is formulated to be well within the tolerable limits for each ingredient and is generally safe to take alongside most multivitamins. The blend was designed to complement, not overwhelm, your routine. That said, everyone’s needs are unique, so we always recommend checking with your healthcare provider to make sure the combination is right for you.

Like most supplements, we advise against taking Not Today, Grey while pregnant or nursing. However, our topical formulas are clean and safe for use during pregnancy and breast feeding and can be especially supportive in helping to slow and combat postpartum shedding. Everyone’s needs are unique, so we always recommend consulting your healthcare provider before starting any new routine.

Not entirely. Scientists have identified only one gene (IRF4) linked to greying, and it explains just about 30% of the process. The other 70% comes from non-genetic factors like nutrient deficiencies, oxidative stress, everyday stress, lifestyle habits, and aging. That means you have more influence over your hair’s future than you might think. By replenishing the body with essential nutrients and protecting against oxidative stress, it’s possible to slow, reduce, and even repigment grey. For best results, we recommend starting with The System.